Multiple gear ratios in automatic transmission are achievable with multi-stage planetary gears, where there are both the loaded planetary gear and the idle planetary gear under some gear ratios operation. Due to the change of road conditions, engine runs with different rotational speed and torque, which brings an external fluctuation excitation to the automatic transmission planetary gear set. In addition, the gear backlash becomes larger with the wear increasing during the running. Both engine excitation and gear backlash are important factors that not only influence the vibration characteristic and meshing state of the loaded planetary gear but also those of the idle planetary gear. The objective of this paper was to investigate the change of meshing force state of loaded planetary gear and idle planetary gear influenced by the different backlash and the engine excitation based on a nonlinear torsional vibration model.


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    Title :

    Dynamic Characteristics of Vehicular Planetary Gears Influenced by Engine Excitation and Backlash Based on Nonlinear Torsional Vibration Model


    Additional title:

    Lect. Notes Electrical Eng.


    Contributors:
    Liu, Hui (author) / Cai, Zhongchang (author) / Xiang, Changle (author)


    Publication date :

    2012-11-07


    Size :

    12 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English






    Torsional vibration in planetary gears investigation of simplified models

    Johansen, S. / IMechE; Automobile Division / IMechE; Railway Division et al. | British Library Conference Proceedings | 1998


    Control & analysis of torsional vibration with backlash

    Umida, H. | British Library Online Contents | 1995